231709964 has 12 divisors (see below), whose sum is σ = 412140288. Its totient is φ = 113955600.

The previous prime is 231709963. The next prime is 231709979. The reversal of 231709964 is 469907132.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (231709963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474572 + ... + 475059.

It is an arithmetic number, because the mean of its divisors is an integer number (34345024).

Almost surely, 2^231709964 is an apocalyptic number.

It is an amenable number.

231709964 is a deficient number, since it is larger than the sum of its proper divisors (180430324).

231709964 is a wasteful number, since it uses less digits than its factorization.

231709964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949696 (or 949694 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 231709964 is about 15222.0223360761. The cubic root of 231709964 is about 614.2072001741.

The spelling of 231709964 in words is "two hundred thirty-one million, seven hundred nine thousand, nine hundred sixty-four".